How to reduce notoriety in the frontier?
I got bored and attacked some redcoat convoys in the woods, and now I'm fairly notorious. I have two little icons of notoriety now (in an area where, as another question notes, the general base notoriety is one symbol). Is there a way to reduce this notoriety without going to a different area (or heading back to Boston to take down some signs)?
(I don't believe this is a duplicate of this question, though the answer may be the same. This is about notoriety that I earned through my actions in the frontier, not the base notoriety that you automatically have in certain frontier areas. Additionally, the answers ended up being different: it seems that I encountered a bug.)